Felling device for sewing-machines.



B. M. KRELL & M. ZUCKERMAN.

mum; DEVICE FOR SEWING MACHINES. AFPLICATION FILED APli. I0. I91].

Patented Oct. 2, 1917.

2 SHEETS-SHEET I.

fnveniorgs' Bernard/ mall B. M. KRELL 8; M. ZUCKERMAN.

FELLlNG DEVICE FOR SEWING MACHiNES.

APPLlCA'HON FILED APR. 10. I911.

1,241,73 9. Patented Oct. 2, 1911.

2 SHEETS-SHEET 2.

" 1351265565: Bernard Mfl reZl. W [Vic/aide! Zua/ierman.

By them/1Z5;

UNITED STATES PATENT OFFICE.

BERNARD M. KRELL AND MICHAEL ZUCKEBMAH, OF NEW YORK, I. Y.

FELLING DEVICE FOR SEWING-MACHINES.

Specification of Letters Patent.

Patented Oct. 2, 1917.

Application filed April 10, 1917. Serial H0. 180,940.

To all whom it may concern.-

Be it known that we, BERNARD M. KRELL, a citizen of the United States,residing at New York city in the county of Bronx and State of New York,and MICHAEL Zoom-n- MAN, a citizen of the United States, residing at NewYork city, in the county of Bronx and State of New York, have inventedcertain new and useful Improvements in Fell ing Devices forSewing-Machines, of which the following is a. specification.

This invention relates to a feller for sewing machines and has for itsprincipal object to provide a feller for making curved lap seams whichcurve either to the right or to the left as the seam passes through themachine.

Another object-is to provide an easily adjustable feller for sewing ondifl'erent kinds and thicknesses of material.

These and other objects will appear as the description proceeds.

In order to accomplish these objects we have provided a fellercomprising a base piece, a scroll plate of novel construction andrelation; and while herein we have described minute details ofconstruction, the invention is not limited to these since the details ofconstructionand combination may be varied without departing from thespirit and scope of the invention as claimed.

In the accompanying drawings, showing by way of example one of manypossible embodiments of the invention,

Figure 1 is a plan of the feller;

Fig. 2 is a front elevation; Y r

Fig. 3 is a Ian of the base piece;

Fig. 4 is a eft-hand end view of the base piece;

Fig. 5 isa planofthe scroll plate;

Fig. 6 is a right hand end elevation of the scroll plate;

Fig. 7 is plate; 7

Fig". 8 is a plan of the feller showing by dotted lines material duringthe formation of a fell curved to the right; 7

Fig. 9 is a similar view showing the fell curved to the left; and I Fig.10 is an inverted rear elevation showa front elevation of the scroll ingthe interrelation of and the feller parts.

The feller herein selected to illustrate our the two fell partsinvention consists of a base piece 10 and a justed the positioning luglfistamped froln the scroll plate 11.

The scroll plate is provided with a pair of elongated slots 17 throughwhich pm screws 18 into the threaded openings 19 of the bracket face14,- whereby the scroll plate may be held in adjusted position, with orwithout the lug 16 against the edge 15, as d The left hand end portion20 of the scroll plate is bent downwardly as at 21, inwardly as at 22,again downwardly as at 23, and

outwardly as at 24, thus forlmng an S- shapedscroll, the portion 24further continued, upwardly as at .25 and en further to the C-shapedscroll extension.

The left hand edge portion of the bracket face 14 is continued inmover-hanging lip 27 disposed above an inwardly curved face 28 merginggradually into the base plate 29 of the base piece 10.

The downwardlyand inwardly bent por tions 21 and 22 of the scroll platecooperate with the outwardly tions 24 and 25 and the rightwardly bentportion 26 to form an upper C-shaped folding and guiding slot 30.Similarly the portions 22, 23, and 24 cooperate with the curved face 28and the adjacent portion of the base plate 29 to form a lower foldingand guiding slot 31'si1nilar' to the slot 30 but disposed in the reversedirection, a branchof one slot being received between the two branchesof the other slot.

and upwardly bent por-' right as at 26, thus forming a By reference toFig. 5 it will be noted that portions 21, 22, and 23 are cut away at theedge 32 and, therefore, extend in the direction of the feed of thecloth, only about half the distance of the portion 25.

The left hand portion 20 of the scroll plate is continued rearwardlyinto a slightly downwardly inclined tongue 34. The portion 24 iscontinued rearwardly in finger 35; while the face 28 and the base plate29 are continued rearwardly in a curved extension 36. The tongue 34, thefinger 35 and the extension 36 terminate at about the same distance tothe rear of the feller; and the needle or needles of the machine aredisposed to the rear thereof.

The operation of the device is as follows:

The lower section or piece 38 of the work is put upon the base plate 29and the edge portion thereof moved into the curved lower slot 31 untilthe edge is substantially in contact with the downwardly bent portion21. The upper work-piece 39 is placed upon the scroll plate and the edgeportion thereof disposed in the C-shaped slot 30 with the edgesubstantially in contact with. the downwardly bent portion 23. Thepieces 38 and 39 are then passed through the machine and stitched.

It will be noted that an imaglnary at line passed through the edge 32 ofthe downwardly extending portion 23 and the rear edge 40 of the curvedface 28 is inclined considerably to the right relative to the normaldirection of feed. This permits the edge of the upper work piece 39 tobe inclined to the right whereby the work pieces may be moved throughthe fellerin a rightwardly inclined direction and a rightwardly curvedfell 42, as in Fig. 8, produced.

In like manner it will be observed than an imaginary line 3 passedthrough the rear edge 32 of the downwardly bent ortion 21 and the rearedge 44 of the u war 1y bent portion 25 is inclined to the le permittingthe edge of tlm lower work piece 38 to be inclined to the left, wherebya leftwardly curved fell 45, as shown in Fig. 9 may be produced.

It is noted that the curved fells can be produced only when the edges ofthe material are curved, and that the cut-away portions permit thecurved edges to assume the proper position. I

The openings 17 are large enough to permit both longitudinal and angularadjustment of the scroll plate. Both the rightwardly and leftwardlycurved fells may be made without adj ustin the scroll plate, but if itbe desired to ma e the fell more pronounoedly curved in eitherdirection, the scroll plate is adjusted to incline in that direction,the lug 16 preventing inclination to the right su cient to close theguiding slots 30 and 31. Because of the shape of the curve of the edge27, it is impossible to close the guiding slots by inclining the scrollplate to the left.

By adjusting the scroll plate longitudinally, the width of the'lowerguiding slot 31 is varied, whereby different thicknesses of the materialof the lower work piece 38 are accommodated. Different thicknesses ofthe upper work piece 39 may be accommodated without any adjustment ofthe upper guide slot 30.

We claim as our invention:

1. In a device of the character described, the combination of a parthaving a curved face; an S-shaped scroll; and an upwardly curvedC-shaped extension scroll joining the S-shaped scroll, the S-shapedscroll cotiperating with the C-shaped extension scroll and said curvedface to form a pair of C- shaped slots, the arm of one slot beingreceived between the arms of the other slot, said $-shaped scroll beingcut away at the middle of its rear art whereby it is much shorter thansaid -shaped extension scroll.

2. In a device of the charcter described, the combination of a parthaving a curved face; an S-shaped scroll; and an upwardly curvedC-shaned extension scroll joining the S-shaped scroll, the S-shapedscroll cooperating with the C-shaped extension scroll and said curvedface to form a pair of C- shaped slots, the arm of one slot beingreceived between the arms of the other slot, the upper part of saidS-shaped scroll being provided with a rearward extension.

3. In a device of the character described, the combination'of a parthaving a curved face; ans-shaped scroll; and an "upwardly curvedC-shaped extension scroll joining the s shaped' scroll, the s-shapedscroll cotiperating with the C-shaped extension scroll and said curvedface to form a pair of C- shaped slots, the arm of one slot beingreceived between the arms of the other slot, the upper part and thelower part of said S-shaped scroll being provided with rearwardextensions.

4. In a device of the character described, the combination of a parthaving a curved face; an S-shaped scroll; and an upwardly curvedC-shaped extension scroll joining the S-shaped scroll, the 'S-shapedscroll coiipcrating with the C-shaped extension scroll and said curvedface to form a pair of C- shaped slots, the arm of one slot beingreceived between the arms of the other slot, the upper part and thelower part of said S-shaped scroll being provided with rearwardextensions converging toward each other.

5. In a device of the character described, the combination of a parthaving a curved face; an S-shaped scroll; and an upwardly curvedC-shaped extension scroll joining the S-shaped scroll, the S shapedscroll 006ping toward each other.

6. In a device of the character described, the combination of a basepiece provided with a curved face; and a scroll plate secured to saidpiece and formed with an S- shaped scroll and an upwardly curved C-shaped extension scroll joining the S-shaped scroll, the S-shaped scrollcooperating with the C-shaped extension scroll and said curved face toform a. pair of C-shaped slots, the arm of one slot being receivedbetween the arms of the other slot, said S-shaped scroll being cut awayat the middle of its rear part whereby it is much shorter than said-shaped extension scroll and said curved face, said curved faceterminating a distance from the middle part of the shaped scroll.

7. In a device of the character described, the combination of a parthaving a curved face; an S-shaped scroll; and an upwardly curvedC-shaped extension scroll joining the S-shaped scroll the S-shapedscroll cooperating with the -shaped extension scroll and said curvedface to form a pair of C-sha d slow, the arm of one slot being receivedi;- twcen the arms of the other slot, said S- ,shapcd scroll being cutaway at the middle of its rear part whereby it is much shorter than saidC-shaped extension scroll, said curved face and the upper part and thelower part of said S-shaped scroll being provided with rearwardextensions converging toward each other.

8. In a device of the character described, the combination of a basepiece provided with an elevation and a. curved face; and a scroll platesecured to said elevation and formed with an S-shaped scroll; and anupwardly curved C-shaped extension scroll joining the S-shaped scroll,the s shaped scroll cooperating with the C-shaped extension scroll andsaid curved face to form a. pair of C-shaped slots, the arm of one slotbeing received between the arms of the other slot, said S-shaped scrollbeing cut away at the middle of its rear part whereby it is much shorterthan said C-shaped extension scroll. said curved face terminati adistance from the middle part of the -shaped scroll.

9. In a device of the character described, the combination of with anelevation and a curved face; and a scroll plate secured to saidelevation and formed with an S-shaped scroll; and an upwardly curvedC-shaped extension scroll joining the S-shaped scroll, the S-shaped abase piece provided scroll caliper-ating with the C-shaped extensionscroll and said curved face to form a pair of C-shaped slots, the arm ofone slot being received between the arms of the other slot, saidS-shaped scroll being cut away at the middle of its rear part whereby itis much shorter than said C-shaped extension scroll and said curvedface, said curved face and the upper part and the lower part of saidS-shaped scroll being provided with rearward extensions convergingtoward each other, said curved face'terminating a distance from themiddle part of the S-shaped scroll.

10. In a device of the character described, the combination of-a basepiece provided with an elevation and a curved face, and a scroll platesecured to the elevation and formed with an S-shaped scroll and a C-shaped extension scroll, the S-shaped scroll cobpcrating with scroll andsaid curved face to form a pair of C-shaped slots, the one slotreceiving between its arms an arm of the other slot, the S-shaped scrollbeing cut away at its rear whereby it is much shorter than said C-shaped extension scroll or curved face, said face and the end parts ofthe S-shaped scroll being provided with rearward extensions.

In a device of the character described, the combination of a base piececomprising a base plate and an elevation thereon having an inwardly anddownwardly curved end face merging into the upper face of the baseplate, and a scroll plate angularly and longitudinally and ad ustablysecured on said elevation and formed at one end into downwardly,inwardly, downwardly and outwardly curved portions forming an S- shapedscroll, the outwardly curved portion being upwardly curved anddisposedrover the S-shaped scroll to form a. C-shaped folding slot, thelower part of the scroll forming, with said downwardly curved end face,

a reversed C-shapcd slot receiving between its arms an arm of the 12. Ina device of the character described, the combination of a base pieceprovided with a curved face and a positioning edge, a scroll plate onsaid base piece and provided with a shoulder engaging said edge and witha scroll cooperating with said face,- and means adj ustably securingsaid plate on said base piece.

13. In a device of the character described, the combination of a basepiece provided with a curved face and a positionin edge, a. scroll plateon said base piece era provided with a pair of slots and with a shoulderengaging said edge and with a scroll cooperating with said face, andscrews passing through said slots into said base piece for adjnstablysecuring said plate on said base piece.

14. In a device of the character described C-shapcd slot.

the combination of a base piece provided shoulder formed on said plateand engaging with an elevation having a curved end and said edge.

a cutaway intermediate part forming a po- BERNARD M. KRELL.

sitioning edge, a scroll plate provided with v MICHAEL ZUCKERMAN. 5 a.scroll cooperating with said curved end Witnesses:

to form a guide slot, means for adjustably H. M. KILPATRICK,

securing the plate on the elevation, and a H. D. PENNEY.

